EP0339683A3 - Process for desulphurisation of a sulphur dioxide-containing gas stream - Google Patents

Process for desulphurisation of a sulphur dioxide-containing gas stream Download PDF

Info

Publication number
EP0339683A3
EP0339683A3 EP19890107811 EP89107811A EP0339683A3 EP 0339683 A3 EP0339683 A3 EP 0339683A3 EP 19890107811 EP19890107811 EP 19890107811 EP 89107811 A EP89107811 A EP 89107811A EP 0339683 A3 EP0339683 A3 EP 0339683A3
Authority
EP
European Patent Office
Prior art keywords
magnesium
sulphur dioxide
desulphurisation
gas stream
containing gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890107811
Other versions
EP0339683B1 (en
EP0339683A2 (en
Inventor
Jr. Donald H. Stowe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dravo Lime Co
Original Assignee
Dravo Lime Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dravo Lime Co filed Critical Dravo Lime Co
Publication of EP0339683A2 publication Critical patent/EP0339683A2/en
Publication of EP0339683A3 publication Critical patent/EP0339683A3/en
Application granted granted Critical
Publication of EP0339683B1 publication Critical patent/EP0339683B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

A process for desulphurising sulphur dioxide-containing gases wherein the sulphur-containing gases are contacted with an aqueous solution of magnesium hydroxide in a wet scrubber, wherein magnesium sulphite and magnesium bisulphite are formed, a portion of spent scrubbing medium is subjected to oxidation to convert the magnesium sulphite and the magnesium bisulphite therein to magnesium sulphate, the oxidised product is contacted with a magnesium-containing lime slurry to obtain magnesium hydroxide and calcium sulphate, calcium sulphate is separated from the resulting product and the magnesium hydroxide is recycled to the scrubber.
EP89107811A 1988-04-29 1989-04-28 Process for desulphurisation of a sulphur dioxide-containing gas stream Expired - Lifetime EP0339683B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/188,254 US5039499A (en) 1988-04-29 1988-04-29 Process for desulfurization of sulfur dioxide-containing gas streams
US188254 1988-04-29

Publications (3)

Publication Number Publication Date
EP0339683A2 EP0339683A2 (en) 1989-11-02
EP0339683A3 true EP0339683A3 (en) 1990-11-22
EP0339683B1 EP0339683B1 (en) 1994-06-15

Family

ID=22692393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107811A Expired - Lifetime EP0339683B1 (en) 1988-04-29 1989-04-28 Process for desulphurisation of a sulphur dioxide-containing gas stream

Country Status (6)

Country Link
US (1) US5039499A (en)
EP (1) EP0339683B1 (en)
AT (1) ATE107186T1 (en)
CA (1) CA1309840C (en)
DE (1) DE68916104T2 (en)
ES (1) ES2057009T3 (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996032A (en) * 1989-12-21 1991-02-26 Dravo Lime Company Process for removing sulfur dioxide from flue gases
US5084255A (en) * 1991-03-26 1992-01-28 Dravco Lime Company Sulfur dioxide removal process with gypsum and magnesium hydroxide production
US5260045A (en) * 1991-11-22 1993-11-09 Electric Power Research Institute Modification of magnesium-enhanced lime flue gas desulfurization process to improve solids dewatering
FR2694707B1 (en) * 1992-08-13 1994-12-23 Aquafrance Process for decontaminating smoke from liquid fuel boilers by cooling and washing the smoke, and neutralization of effluents.
US5270026A (en) * 1992-12-11 1993-12-14 Dravo Lime Company Sulfur dioxide scrubbing process producing purified magnesium hydroxide
US5558848A (en) * 1993-08-20 1996-09-24 Moser; Robert E. Clear liquid acid flue gas desulfurization system
DE19502632C2 (en) * 1994-02-10 2002-06-20 Ver Energiewerke Ag Method for operating a flue gas desulfurization system for a lignite-dust-fired power plant
CA2147059C (en) * 1994-04-28 1999-08-10 John W. College Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation
US5628811A (en) * 1994-08-23 1997-05-13 Dravo Lime Company Method of ameliorating acid soil to enhance plant growth
CA2159521C (en) * 1994-10-07 1999-11-09 Shigeo Iiyama Method for desulfurizing exhaust gas
US5614158A (en) * 1995-10-20 1997-03-25 Dravo Lime Company Process for removing sulfur dioxide from gases and producing gypsum and purified magnesium hydroxide
JPH09122440A (en) * 1995-10-20 1997-05-13 Dravo Lime Co Method for scrubbing sulfur dioxide being accompanied with formation of pure product of magnesium sulfite
AT403015B (en) * 1996-06-14 1997-10-27 Austrian Energy & Environment Process for desulphurization of flue gases
US6099816A (en) * 1996-07-24 2000-08-08 Dravo Lime, Inc. Process for desulfurizing a sulfur-dioxide containing gas
US5827488A (en) * 1996-09-06 1998-10-27 Dravo Lime Company Process for removing SO2 and NOx from a gaseous stream
US5719099A (en) * 1996-10-22 1998-02-17 Bhat Industries, Inc. Method and compositions for stabilization of heavy metals, acid gas removal and ph control in contaminated matrices
US5846286A (en) * 1997-03-07 1998-12-08 Dravo Lime Company Method for removing NOx from a gas stream while producing an alkaline earth nitrate fertilizer composition
JP3573950B2 (en) * 1997-06-24 2004-10-06 東洋エンジニアリング株式会社 Exhaust gas desulfurization method
US6033577A (en) * 1998-05-18 2000-03-07 Dravo Lime Company Coordination of liquid-solid separators and fluid tanks
US6428760B1 (en) * 1999-06-22 2002-08-06 Toyo Engineering Corporation Method for desulfurizing exhaust gas
EP1110595A1 (en) * 1999-12-23 2001-06-27 Dravo Lime, Inc. Reduction of calcium and chloride in the flue gas desulfurization process
KR20010097371A (en) * 2000-04-21 2001-11-08 우명우 Manufacturing magnesium sulfate by waste sulfuric acid.
US6572832B2 (en) * 2001-03-27 2003-06-03 Carmeuse North America Services, Inc. Method of removing sulfur dioxide from a gaseous stream in a wet scrubbing unit
US20050107648A1 (en) * 2001-03-29 2005-05-19 Takahiro Kimura Gas hydrate production device and gas hydrate dehydrating device
JP5019683B2 (en) * 2001-08-31 2012-09-05 三菱重工業株式会社 Gas hydrate slurry dewatering apparatus and method
US6997119B2 (en) * 2002-07-23 2006-02-14 Radway Jerrold E Combustion emissions control and utilization of byproducts
EP1848524B1 (en) * 2005-02-04 2014-10-15 Fuel Tech, Inc. Targeted duct injection for so3 control
DE102007050904B4 (en) 2007-10-23 2013-07-25 Babcock Noell Gmbh Plant and process for the purification of flue gases
KR20120008523A (en) * 2009-04-08 2012-01-30 쉘 인터내셔날 리써취 마트샤피지 비.브이. Method of treating an off-gas stream and an apparatus therefor
CN101574619B (en) * 2009-06-09 2012-07-04 陆泳凯 Flue gas desulfurization process through calc-alkaline regeneration magnesium sulfite cycle absorption method
WO2011104302A1 (en) * 2010-02-25 2011-09-01 Alfa Laval Corporate Ab Exhaust gas and gas scrubber fluid cleaning equipment and method
CN101920159A (en) * 2010-09-10 2010-12-22 北京金源化学集团有限公司 Method for removing and reclaiming sulfur dioxide from gas by low power consumption renewable absorbent
US8518353B1 (en) 2012-10-09 2013-08-27 Babcock Power Development LLC Reduced sorbent utilization for circulating dry scrubbers
CN103785285A (en) * 2014-02-27 2014-05-14 大连海事大学 High-efficiency magnesium-method desulfurization byproduct oxidization device and high-efficiency magnesium-method desulfurization byproduct oxidization method
EP3069781B1 (en) 2015-03-20 2019-05-08 General Electric Technology GmbH System for sulphur removal from a flue gas
CN104959012A (en) * 2015-04-17 2015-10-07 熊天渝 Magnesium-calcium based wet method desulphurization system and method for removing sulfur dioxide in flue gas and producing gypsum
JP7196575B2 (en) * 2018-12-03 2022-12-27 住友金属鉱山株式会社 Method for detoxifying exhaust gas containing sulfur dioxide
CN110482578A (en) * 2019-09-17 2019-11-22 大连海洋大学 A kind of wet-type magnesium method flue gas desulfurization byproduct oxidation unit and its method for oxidation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229450A1 (en) * 1973-05-14 1974-12-13 Dravo Corp
WO1980001377A1 (en) * 1979-01-02 1980-07-10 Bechtel Int Corp Improved so2 removal
EP0295908A2 (en) * 1987-06-17 1988-12-21 Bechtel Group Incorporated Flue gas desulfurization

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919393A (en) * 1973-03-08 1975-11-11 Dravo Corp Process for sulfur dioxide removal from combustion gases
US4046856A (en) * 1974-03-15 1977-09-06 Kawasaki Jukogyo Kabushiki Kaisha Method for removing sulfur oxide from stack gas
CH608718A5 (en) * 1975-01-20 1979-01-31 Scubapro Eu
JPS53117683A (en) * 1977-03-23 1978-10-14 Kawasaki Heavy Ind Ltd Removing method for sulfure oxides contained in exhayst gas

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229450A1 (en) * 1973-05-14 1974-12-13 Dravo Corp
WO1980001377A1 (en) * 1979-01-02 1980-07-10 Bechtel Int Corp Improved so2 removal
EP0295908A2 (en) * 1987-06-17 1988-12-21 Bechtel Group Incorporated Flue gas desulfurization

Also Published As

Publication number Publication date
DE68916104T2 (en) 1994-09-22
US5039499A (en) 1991-08-13
EP0339683B1 (en) 1994-06-15
CA1309840C (en) 1992-11-10
EP0339683A2 (en) 1989-11-02
DE68916104D1 (en) 1994-07-21
ATE107186T1 (en) 1994-07-15
ES2057009T3 (en) 1994-10-16

Similar Documents

Publication Publication Date Title
EP0339683A3 (en) Process for desulphurisation of a sulphur dioxide-containing gas stream
EP0434019A3 (en) Process for removing sulfur dioxide from flue gases
GB1480034A (en) Process for removing sulphur dioxide from a gaseous strea
GB1409593A (en) Method for directly preparing a sulphate or sulphates from exhaust gases containing so2 gas
TW353624B (en) Desulfurization process for flue gases
CA2097996A1 (en) Method of Sulfur Dioxide Removal from Gaseous Streams with Alpha-Hemihydrate Gypsum Product Formation
DE69500717D1 (en) Magnesium-assisted leaching of sulfur dioxide with the production of gypsum
ES409143A1 (en) Cyclical process for recovery of elemental sulfur from waste gases
CA2033560A1 (en) Sulfur dioxide removal from flue gases with sulfite oxidation inhibition
DE3688352D1 (en) METHOD FOR PURIFYING HYDROGEN SULFUR AND EXHAUST GAS CONTAINING SULFUR DIOXIDE.
EP0223211A3 (en) Sulfur dioxide removal process
CA2122955A1 (en) Process for the desulfurization of sulfur dioxide-containing gases
FI953508A0 (en) Method and apparatus for purifying sulfur dioxide-containing gases
GB1435805A (en) Removal of sulphur dioxide from waste gases
GB1401325A (en) Process for scrubbing so2 from a gas stream
FR2717402B1 (en) Process for the treatment of a gaseous effluent containing sulfur dioxide in order to obtain a solution of ammonium bisulfite or of alkali or alkaline earth metal.
DE3560615D1 (en) Process and apparatus for the desulfurization of fumes
NL7507553A (en) Sulphur dioxide removal from flue gas - with Claus unit off gas reduced and recycled
CA2133694A1 (en) Process for Producing Magnesium Sulfite Hexahydrate in a Flue Gas Desulfurization System
NL7505940A (en) Sulphur dioxide removal from flue gas - and conversion to sulphur by reducing with gas contg. sulphur cpds.
GB1424941A (en) Method of removing oxides of sulphur from waste gas
GB1522263A (en) Regenerative sulphur dioxide scrubbing system
NL7317364A (en) Removing sulphur dioxide from waste gases - by converting into sulphite and oxidising to sulphate
FI920531A (en) Method for removing excess sulfur from a sulphate pulp mill
FR2095085A5 (en) Recovery of sulfur dioxide from waste gas streams

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE DE ES FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19910204

17Q First examination report despatched

Effective date: 19920117

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT NL SE

REF Corresponds to:

Ref document number: 107186

Country of ref document: AT

Date of ref document: 19940715

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

REF Corresponds to:

Ref document number: 68916104

Country of ref document: DE

Date of ref document: 19940721

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2057009

Country of ref document: ES

Kind code of ref document: T3

EAL Se: european patent in force in sweden

Ref document number: 89107811.5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990414

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990426

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990427

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990429

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19990430

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990614

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000429

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000430

BERE Be: lapsed

Owner name: DRAVO LIME CY

Effective date: 20000430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001101

EUG Se: european patent has lapsed

Ref document number: 89107811.5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001229

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20001101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020204

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020424

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020502

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031101

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050428